<?php 

	/**
	 * 二维数组 （数组中的数组）
	 */
	
	$group = array(
			array("name"=>"zs", "sex"=>"男", "age"=>18, "email"=>"aa@ss.com"),
			array("name"=>"ls", "sex"=>"男", "age"=>19, "email"=>"bb@ss.com"),
			array("name"=>"ww", "sex"=>"女", "age"=>20, "email"=>"cc@ss.com"),
			array("name"=>"xm", "sex"=>"男", "age"=>18, "email"=>"dd@ss.com")
		);

	$arr = $group[2]['email'];

	echo $arr."<hr>";

	/**
	 * 三维数组
	 */

	$group1 = array(
			array(
				array(1, 2, 3), 
				array(1, 2, 3),
				array(1, 2, 3),
				array(1, 2, 3)
				),
			array(
				array(1, 2, 3), 
				array(1, 2, 3),
				array(1, 2, 3),
				array(1, 2, 3)
				),
			array(
				array(1, 2, 3), 
				array(1, 2, 3),
				array(1, 2, 3),
				array(1, 2, 3)
				),
			array(
				array(1, 2, 3), 
				array(1, 2, 3),
				array(1, 2, 3),
				array(1, 2, 3)
				)
		);


	print_r($group1[1][1][2]);



 ?>